Standard Time = GMT-1
Summer Time = GMT+0
Clocks on Daylight Saving /Summer Time
until:01:00 GMT on last Sunday in October
DAYLIGHT SAVING TIME
UK and Europe Clock Change Rules
Azores Tourism website
The Azores are in the Azores Time Zone. The Azores Time Zone is Greenwich Mean Time -1 (GMT-1 ).
Like most states in Europe, Summer (Daylight-Saving) Time is observed in Azores, where the time is shifted forward by 1 hour to Greenwich Mean Time (GMT).
After the Summer months the time is shifted back by 1 hour to Azores Time (GMT-1).